the exploratorium at the palace of fine arts has out grown its home. the exhibits will be packed up and moved to pier 15 at the embarcadero. exploratorium was one of the first hands on science exhibitions in the country. we were just there with the kids about a month ago. there is so many things to do and hands-on learning, it's the best. today is free. >> it is 4:37. we want to take advantage of mike nicco. i know one word, we need you mike. >> okay, yeah. >> for information. >> i don't have any money, what else do you want? let's talk about spare the air. poorest air quality in the santa clara valley once again, but all of us are under spare the air and possibly again tomorrow. so no burning of any type of wood. other big story, freeze warning in the north bay, mid 20s until 9:00. frost advisory for the bayshore line and santa clara valley, temperatures in the low 30s through 9:00. keep the pets in and plants protected until that time. once we get passed that, by noon mostly sunny and upper 40s. low to mid-50s by 4:00, so slightly warmer than yesterd